World Resorts Saint Lucia Castries Weather

Castries 7 Days Forecast

15.10
thu
Day
86°F
W 12 mph
Precip.
16%
Night
81°F
W 9 mph
Precip.
19%
16.10
fri
Day
86°F
W 12 mph
Precip.
14%
Night
81°F
W 10 mph
Precip.
19%
17.10
sat
Day
86°F
W 11 mph
Precip.
14%
Night
81°F
W 11 mph
Precip.
20%
18.10
sun
Day
86°F
W 12 mph
Precip.
13%
Night
81°F
W 9 mph
Precip.
23%
19.10
mon
Day
86°F
W 14 mph
Precip.
16%
Night
81°F
W 12 mph
Precip.
27%
20.10
tue
Day
86°F
W 13 mph
Precip.
29%
Night
81°F
W 9 mph
Precip.
30%
21.10
wed
Day
86°F
W 14 mph
Precip.
20%
Night
81°F
NW 9 mph
Precip.
20%

Sea water temperature in October, °F

Show year:
2026
2025
2024

The average sea water temperature in October of 2026 was 84.7°F. The highest and lowest sea temperatures during the month were 85.1°F and 84.4°F.

Air temperature in Castries, °F

Precipitation total in Castries, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Castries

Sunniest months:
December 4 days
March 4 days
September 4 days
Warmest months:
September 86.7 °F
October 86.0 °F
August 85.7 °F
Warmest sea temp:
September 84.9 °F
October 84.6 °F
August 83.9 °F
Coldest months:
January 81.8 °F
February 81.9 °F
March 82.1 °F
Rainiest months:
August 7 days
October 5 days
September 5 days
Windiest months:
June 15.8 mph
February 15.4 mph
July 15.0 mph

Castries on a weather map

Current weather
19:21
Castries
+82°F
W 11 mph
Feels like: +88°F
Precip.: 21%
Places in Saint Lucia:
Name
°F
Vieux Fort
+82°F
Castries
+82°F
24 Hours Forecast
Castries
Local time: 19:21
October 15, thursday
2100
81°F
W
10 mph
October 16, friday
0000
81°F
W
9 mph
0300
79°F
W
7 mph
0600
79°F
W
7 mph
0900
84°F
W
11 mph
1200
86°F
W
12 mph
1500
86°F
W
13 mph
1800
82°F
W
11 mph
Units of measurement: °C / °F